Please tell me about Office of Profit.

Dear sir,

In Indian constitution I have read about office of profit that is to say a member of Lok Sabha or Rajya Sabha or sate Legislative Assembly can not hold Office of Profit. It is not clear to me, please tell me about office of profit.

An office of profit is a term used in a number of national constitutions to refer to executive appointments. A number of countries forbid members of the legislature from accepting an office of profit under the executive as a means to secure the independence of the legislature and preserve the separation of powers. Source: http://en.wikipedia.org/wiki/Office_of_profit